Flip Flop Cookies Add a splash of summer fun to your beach bash with these Flip Flop Cookies! Your luau guests will flip for these adorable, easy-to-make treats. Add a fashionable flair to your cookies and adorn them with sparkly sprinkles and custom-shaped fondant for some beach-inspired bites. 1 package of peanut butter cookies Icing Use Icing to make sandal straps on each cookie!